1027745660

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{129439}}^1$

素因数の和:129845

約数の個数: 24

約数和(自身を含む): 2163719040

約数和(自身を除く): 1135973380

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3970, 7940, 129439, 258878, 517756, 647195, 1294390, 2588780, 51387283, 102774566, 205549132, 256936415, 513872830, 1027745660]

約数ペア:

[(1, 1027745660), (2, 513872830), (4, 256936415), (5, 205549132), (10, 102774566), (20, 51387283), (397, 2588780), (794, 1294390), (1588, 647195), (1985, 517756), (3970, 258878), (7940, 129439)]